/*   
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package ewan.android.droidjockey;

import android.os.AsyncTask;

/**
 * Asynchronous task that prepares a MusicRetriever. This asynchronous task
 * essentially calls {@link MusicRetriever#prepare()} on a
 * {@link MusicRetriever}, which may take some time to run. Upon finishing, it
 * notifies the indicated {@MusicRetrieverPreparedListener
 * }.
 */
public class PrepareMusicRetrieverTask extends AsyncTask<Void, Void, Void> {
	MusicRetriever mRetriever;
	MusicRetrieverPreparedListener mListener;

	public PrepareMusicRetrieverTask(MusicRetriever retriever,
			MusicRetrieverPreparedListener listener) {
		mRetriever = retriever;
		mListener = listener;
	}

	@Override
	protected Void doInBackground(Void... arg0) {
		mRetriever.prepare();
		return null;
	}

	@Override
	protected void onPostExecute(Void result) {
		mListener.onMusicRetrieverPrepared();
	}

	public interface MusicRetrieverPreparedListener {
		public void onMusicRetrieverPrepared();
	}
}
